A recent discussion of Dominion: Envoy Promo Card got me thinking... how many game expansions have only one component? One lonely token, asked to shoulder the great responsibility that comes with ... okay, even I can't make this topic any more grandiose.

To be clear, for this purpose I'm not counting whatever the rules are printed on as a component, which lets in a bunch of stuff, and probably leaves out a lot of game scenarios and stuff like the Dungeons & Dragons Miniatures Handbook.